Institute Newton C. Braga

Variable High Q Filter with the 741 (CB13604E)
This circuit was found in a 1973 publication. With the components indicated, the range can be from...
Inverter Regulator -15 V with 1.5 A LM78S40 (CB14407E)
We found this circuit in the Linear Applications Hanbook of the National Semiconductor in 1994. The...
14 to 20 V Symmetric Power Supply with Balance Adjustment (CB14524E)
The integrated circuit used in this project is unusual. We found this configuration in Motorola's Linear...